JP2001100370A - Film unit with waterproof type lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film unit with a waterproof type lens constituted so that convenience required when it is taken out from a waterproof case is improved. SOLUTION: The waterproof case 8 is constituted of a case main body 1 and the cover 2 thereof. A hole piercing through the main body 1 and the cover 2 at the outside of the case 8 is formed. By inserting a strap through the hole, the main body 1 and the cover 2 are connected. Thus, the main body 1 and the cover 2 are prevented from being inadvertently separated, that means, from jumping out when the case 8 is forcibly prized open.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof type in which a film unit with a lens is housed in a waterproof case in which a case body and a lid are fitted so that opening and closing operations cannot be performed, so that a photographing operation can be performed from outside the waterproof case. The present invention relates to a film unit with a lens.

[0002]

2. Description of the Related Art As is well known, a film unit with a lens becomes unusable at the time when a photographic film preloaded at the time of manufacture is used up, and is thereafter collected as it is at a developing laboratory. At the photo lab, the photographed film is taken out of the unit main body, and the film is developed and printed. The remaining unit body is collected by the manufacturer, disassembled and sorted, and then reused for parts and recycled for raw materials.

[0003] As one type of such a film unit with a lens, a waterproof film unit with a lens has been commercialized so that a photograph can be easily taken on the waterside or in the water. The waterproof lens-fitted film unit is a plastic waterproof case that contains the lens-fitted film unit in a water-tight manner.By using the release lever and film winding dial provided on the waterproof case, you can operate the camera from outside the case. It can be carried out.

The waterproof case comprises a case body and a lid. After the film unit with the lens is housed inside, the case body and the lid are tightly integrated by fitting or the like, and the user opens and closes the waterproof case. It cannot be operated. This eliminates the need to provide an opening / closing mechanism in the waterproof case, so that the manufacturing cost can be reduced and the waterproof function can be reliably maintained.

[0005] A film unit with a waterproof lens is also collected in a developing station as it is after use, and the photographic film is taken out. When taking out the photo film, it is necessary to first take out the film unit with the lens from the waterproof case. As described above, the case body and the lid of the waterproof case are tightly integrated so that the user cannot open or close the case. The lid is forcibly opened from the case body, for example, by breaking, and the lens-fitted film unit is taken out.

[0006]

However, when the waterproof case is forcibly opened as described above, the case body and the lid are forcibly deformed, and the lid is detached from the case body due to the stress generated thereby. You may be instantly rebounded. If the splattered lid has a crack or the like, it is not only very dangerous, but also it takes time and effort to collect the lid, and there is a problem in workability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a waterproof lens-type film unit with improved workability when taking out the lens-fitted film unit from the waterproof case.

[0008]

In order to achieve the above object, the present invention utilizes a strap which is used when carrying the portable telephone so as to prevent the case body and the lid from being inadvertently separated when the waterproof case is disassembled. It was made.
For this reason, in the present invention, the case body and the lid that constitute the waterproof case are each formed with holes that penetrate outside the waterproof case, and these holes are used as through holes through which a portable strap is inserted in series. It can be used.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the appearance and disassembled state of a film unit with a waterproof lens to which the present invention is applied.
And FIG. The waterproof case 8 includes a case body 1 and a lid 2 each formed of a plastic molded product. Openings 22 and 21 are provided in the case body 1. After the film unit with lens 9 is housed inside the case body 1, the winding knob 4 and the release lever 5 are assembled into the openings 22, 21, so that the respective engagement portions of the film unit with lens inside the case body 1. Engage with required parts. The openings 22 and 21 have O
A ring or the like is fitted so that the watertight structure is maintained. A transparent photographing window 6 and a finder window 7 are provided on the front surface of the case body 1, and are respectively located on the front surfaces of the photographing lens and the finder objective lens of the film unit 9 with a lens.

After the lens-fitted film unit 9 is housed in the case body 1, the lid 2 is fixed to the rear side of the case body 1 via a rubber packing 23. Lid 2 to case body 1
The cover 2 has six locking pieces 24 projecting therefrom in order to fix it to the rear face of the cover 2. These locking pieces 24 enter the inside of the case body 1. A locking claw 25 is integrally formed on the inner wall of the case body 1 at a position corresponding to the locking piece 24, and the locking claw 25 is inserted into a locking hole 24 a formed in each of the locking pieces 24 when the locking piece 24 enters. Fit.

As shown in the sectional view of FIG. 3, the rubber packing 23 is accommodated in a groove provided on the back surface of the case body 1, and the cover 2 is fitted by the engagement between the locking claw 25 and the locking hole 24a. Is fixed to the case body 1 and compressed between the cover 2 and the case body 1. This prevents water from entering the waterproof case from the gap between the case body 1 and the lid 2. Further, since the engagement between the locking claw 25 and the locking hole 24a cannot be released from the outside of the case by a normal method, the waterproof property is reliably maintained during use of the film unit with the waterproof lens. Will be able to

The case body 1 and the lid 2 are respectively formed with holes 3a3b penetrating outside the waterproof case. As shown in FIG. 3, when the lid 2 is fixed to the case body 1,
These holes 3a, 3b are arranged in series. These holes 3a and 3b become through holes for inserting and attaching the portable strap 31. The strap 31 is preferably made of rubber which is resistant to water wetting, but may be made of plastic or cloth. In addition, strap 3
1 may be attached at the time of manufacture, or may be packaged together with a film unit with a waterproof lens so that the user attaches it at the time of use. Also, the strap 31
It is preferable that the case body 1 and the lid 2 have an appropriate looseness between them, rather than tightly tying them with the strap 31 when attached.

When using the film unit with a waterproof lens, the film is fed by first turning the winding knob 4. When the film is wound up by one frame, the winding mechanism provided in the lens-fitted film unit 9 is operated to lock the film, and the winding knob 4 is idled by the clutch mechanism. Since the shutter is charged during the winding of one frame of the film, the user can operate the release lever 5 to take a picture.

When the photographing is performed, the operation of the winding stop mechanism is released. Therefore, the user can sequentially perform shooting by rotating the winding knob 4 and operating the release lever 5 in the same manner. A film cartridge is stored in the film unit 9 with a lens immediately below the winding knob 4. Each time the film is wound, the photographed film is wound into the film cartridge. When the film is used, most of the film is in a state of being entangled in the film cartridge.

[0015] The used film unit with a waterproof type lens is collected in a developing station as it is. In the developing station, first, the work of taking out the film unit 9 with the lens from the waterproof case 8 is performed. A concave portion 32 is formed in the case main body 1 so that the removal operation can be easily performed, and the bottom surface of the concave portion 32 is thinner than other portions of the case main body 1. Therefore, as shown in FIG. 3, a driver 33 is pierced into the recess 32 to break the case body 1 and the tip of the driver 33 is inserted to the front side of the lens-fitted film unit 9.

Subsequently, when the front end of the driver 33 is strongly squeezed toward the rear side of the case body 1, the cover 2 is pressed together with the lens-fitted film unit 9, and the case body 1 and the cover 2 are forcibly deformed. Separated. At this time, if the case main body 1 and the lid 2 are tightly bound by the strap 31, the strap 31 will also prevent the separation of the two.
It is preferable that the strap 31 is loosely stopped in the holes 3a and 3b, or that the strap 31 is easily loosened, or that the strap 31 is made of rubber to have some elasticity.

As described above, when the case main body 1 and the lid 2 are forcibly separated from each other by an external force, the lid 2 is separated from the case main body 1 by the stress at the moment the lid 2 is separated from the case main body. Sometimes. However, in the present invention, since the case body 1 and the lid 2 are connected by the straps 31 inserted in the holes 3a and 3b in series, the lid 2 does not fly away from the case body 1 around. Absent. Therefore, the safety of taking out the lens-fitted film unit 9 can be enhanced, and at the same time, the case main body 1 and the lid 2 remain connected, so that the collecting operation is also simplified.

Although the present invention has been described with reference to the illustrated embodiment, the mounting position of the strap 31 is not limited to the illustrated example. In addition, the waterproof case is not limited to the type in which the back of the case body is covered with a lid, but also the one in which the bottom surface of the case body is covered with a lid, or one that can be almost divided into a front case and a rear case. You may. Although the same effect can be obtained by connecting the case body 1 and the lid 2 with other parts other than the strap, it is more advantageous in terms of cost to use the strap as in the present invention. .

[0019]

As described above, in the film unit with a waterproof lens according to the present invention, the case body and the lid can be connected with the strap, so that the waterproof case is forcibly separated after use. When removing the film unit with lens, the lid will not fly off, improving safety during work and
Recovery of the waterproof case after separation is also facilitated.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a film unit with a waterproof lens embodying the present invention.

FIG. 2 is an exploded perspective view of the film unit with a waterproof lens according to the present invention.

FIG. 3 is a sectional view of the film unit with a waterproof lens shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Lid 4 Film winding knob 5 Shutter lever 6 Exposure part of photographing lens 7 Viewfinder exposure part 8 Waterproof case 9 Film unit with lens 21 Opening for shutter lever 22 Opening for film winding knob 23 Rubber packing 24 Locking piece 25 Locking Nails 31 strap

Claims (1)

[Claims] 1. A lens-fitted photo film unit pre-loaded with a photo film, and a waterproof case comprising a separate case main body and a lid, wherein the case main body and the lid are fitted together so that they cannot be opened or closed. The lens-equipped film unit housed inside the waterproof case is kept water-tight, and the lens-equipped film unit with the lens can be operated from outside the waterproof case. A film unit with a waterproof lens, characterized in that holes are formed in each case outside the waterproof case, and these holes are formed as through holes through which a portable strap is inserted.